Yes because all sides would be equal to 5 which would give you 5*4 = 20 units.
If you would graph the triangle, one of the legs would be 8 and another would be 5 and the area of a triangle is bxh/2 so the equation is 8x5/2=20un².
Hope this helped! :)
Answer:
yasssasasasas
Step-by-step explanation:
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I believe it's the last one, but it's a matrix not a vector as the question asks
